2 in 1 Diamond Gemstone Tester Pen High Accuracy Jewelry Detector for Moissanite Ruby Gold Portable Gemstone Appraisal Tool

High-concerned chemical : None Material : Plastic Jewelry Tools & Equipments Type : Testers & Measurements Origin : Mainland China Item Type : Jewelry Tools & Equipments ✨Key Features: ✅Easy Operation: Simple one-step testing with clear visual and audio indicators. ✅Fast Warm-Up: Ready to use in just ten seconds with a quick recovery time. ✅Power Options: Powered by a 9V AC adapter (US/EU optional) or a 9V battery (battery not included). ✅Auto Shut-Off: Automatically turns off after three minutes to conserve battery life. ✅Portable Design: Lightweight and pocket-sized, making it easy to carry and handle. 🔧Advanced Features: ✅Automatic and Manual Modes: Choose between automatic detection or manual control for customized testing. ✅Linear Display: Provides detailed information for accurate readings. ✅Adjustable Gain: Optimized for testing small stones with precision. ✅Ambient Temperature Compensation: Ensures accurate results regardless of environmental conditions. ✅Anti-Fade Circuit: Prevents inaccurate readings due to stone heating. ✅Low Battery Indicator: Alerts you when the battery is low to maintain accuracy.